Preparation for refacing and hardening flattening-stones and clay products.



106. COMPOSITIONS, COATING OR PLASTIC.

UNITED STATES PATENT OFFICE.

FELIX MALHEBBE BASILE, 0F JUMET, BELGIUM.

PBEPlBATION FOB REFACIN G AND HABDENING LATTENING-STONES AND CLAYPRODUCTS.

No Drawing.

To all whom it may concern Be it known that I, Fnmx MALHERB BASILE, asubject of the King of Belgium, residing at Jumet, Province of Haina'ut,Belgium, have invented a new and ugelflill Preparation for Refacin andHarde g Flattening-Stones and lay Products, of which the following is aspecification.

In the art of making window glass or plate glass, window glass isusually first made in the shape of a cylinder, then it is converted fromthe cylindrical shape into a sheet of flat or rectilinear form, and indoing this, it is done on a flattening stone, said flattening stonebeing composed usually of clay, having an upper, smooth surface thatcomes in contact with the glass, in the process of being flattened, itbeing of course understood that the cylindrical sheet is heated to theproper degree during this step of flattening, so as to make it pliableand readily flattened.

My present invention relates to a novel liquid, fluid or composition ofmatter, composed of novel ingredients which is applied to the surface ofthis flattening stone, which is juxtaposed to or contiguous to the sheetof glass which is being treated, and consists of the novel ingredientsin said liquid or composition of matter, which is applied to saidflattening stone, which are combined in substantially the followingproportions stated, the application of my novel preparation having atendency to harden the clay of the flattening stone.

My invention consists of a fireproof composition adapted to be appliedto flatteningstones in window-glass works or to surfaces of clay orsimilarsubstance, especially in glass-works where exposed to intenseheat, for strengthening and smoothing such surfaces, and applicable as acoating or paint for such surfaces.

The composition consists of the following ingredients in about thefollowing propor- Specification of Letters Patent. Application filedSeptember 16, 1913. Serial No. 790,124.

Patented Sept. 15, 1914.

tions, viz. ili at of sodium, twenty-five (25) parts, s11c te o o assiumtwentyeac {of finely comminuted clay. red lead finel comminuted metalliclead, and p lverized talpum. Iliese ingredients are suita y mixemanually or in a paint-mill or other mixer, and the composition can nowbe applied to the flattening stone or other surface, where, under theinfluence of the intense heat to which it is exposed, it will form afireproof and smooth surface, strengthening the exposed clay-surfaceagainst the effect of the intensely hot glass and the changes oftemperature from the application and removal of the blown glasscylinders and flattened sheets of glass, upon and from the flatteningstone. The composition can be applied to the stone whenever the coatingbecomes worn, so that the stone may always have a smooth and levelsurface imdlthe sheets produced will be even and eve Other modes ofapplying the principle of my invention may be employed for the modeherein explained. Change may therefore be made as regards theproportions of the ingredients herein disclosed, provided the principlesof invention set forth in the following claim are employed.

Having thus described my invention, what I claim as new and desire tosecure by Let ters Patent, is

A fireproof composition for coating surfaces exposed to intense heatconsisting of silicate of sodium, silicate of potassium, linseed oil,water, finely comminuted clay, red

head, finely comminuted metallic lead, and

copies of this patent may be obtained for five cents each, by addressingthe Commissioner ct Patents, Washington, D. 0."

